Supplemental Instruction
Iowa State University
SI Session / Leader: / Chelsea P
Course: / AnS 214
Instructor: / Dr. Adur
Date: / 10/11/16
1. Label and describe what is happening at each wave. Why is atrial repolarization not seen in the PQRST wave?
2. Cardiac Output = ______x ______
3. Stroke Volume = ______x ______
4. What are the 3 factors that affect stroke volume? Describe them.
a)
b)
c)
6. How do positive and negative inotropic agents influence contractility?
7. Name and describe the two cardiac centers located in the medulla oblongata
8. Complete the chart
9. ______is defined as an abnormally fast heart rate (>100bpm) While ______
is defined as a heart rate slower than 60 bpm.
10. Fill in the following blanks with either “increase(s)” or “decrease(s)”.
During exercise, heart rate ______due to signals from joints and muscles. Muscular activity ______, venous return causes an ______in stroke volume. A______in heart rate and a ______in stroke volume causes an ______in cardiac output. A ______in stroke volume allows the heart to beat more slowly at rest, and during exercise causes a ______in cardiac reserve.
11. In hypertrophic cardiomyopathy the walls of the heart become thicker thinner (circle one)